Oakton 35660-54, 35660-56 Instruction Manual

CODE:M003857-3200839729-GZ0000590175

CAUTION

Note

Responsive glass
membrane

Liquid junction

Protective cap

Body

Cap

Lead

Connector cover

Electrode connector

Temperature connector

Guard tube

Gel-filled pH Electrode (35660-54 / 35660-56)

Instruction Manual

December, 2019

This manual describes the operation of the gel-filled pH
electrode,

35660-54/35660-56. Be sure to read this manual

carefully, before using the electrode.

 Conformable standards

This equipment conforms to the following standards:

RoHS: EN50581

9. Monitoring and control instruments

 Authorised representative in EU

Cole-Parmer UK
9 Orion Court, Ambuscade Road
Colmworth Business Park
St Neots
Cambridgeshire
PE19 8YX, United Kingdom
Phone: [phone]
Fax: [phone]

 Caution on use

 Safety precautions

Chemical solution

If the internal material comes in contact with the hands or skin,
wash immediately with water.

Glass fragments

Glass fragments can cause injury.
The tip of the electrode are made of glass.
Be careful not to break them.

 Points of concern

 Do not give an excessive shock to the electrode.
 Cracked or chapped electrode can not be used.Replace

such electrode with a new one.

 Do not wet the connector with water or sample and do

not touch the connector with wet fingers. If it is wet
measured value might be erroneous.

 If the dirt on the responsive glass membrane or liquid

junction can not be removed by pure water, clean them
with the other way referring to the Maintenance.
“ Maintenance ” (page 2).)

 Avoid continuous measurement soaking in the strong

acidic or alkaline solution concentrated more than 0.01
mol/L. These solution may reduce the performance and
the lifetime of the electrode.

 Do not to use the electrode in a solution in which

hydrofluoric acid (HF) is contained. Glassware will
corrode in the HF solution.

 Avoid sudden temperature change over 50 °C on the

electrode. The body of the electrode might be deformed
or the glassware might be cracked.

 Solid particles of silver chloride might be observed

floating in the inner solution of the responsive glass
membrane. This is not a problem and this will not affect
performances of the electrode.

 Do not use the electrode in any place where operation

temperature is out of the specified range.

 Do not swing the electrode like a pendulum, and do not

pull up the electrode by the lead wire. Also, avoid

(Refer to

hanging the electrode or the pH meter by the lead wire.
It may be a cause of breaking wires.

 When disposing of the product, follow the related laws

and/or regulations of your country for disposal of the
product.

 Packaged contents

Name Q’ty

Electrode 1 pc

Instruction manual (this book) 1 booklet

 Specifications and parts description

 Part name

 Specifications

Electrode model 35660-54, 35660-56

Measurement range pH 0 to 14

Operation temperature range 0°C to 80°C

Storage temperature range 0°C to 50°C

Internal electrode Silver/silver chloride

Reference electrode system Double junction

Reference electrode internal
electrolyte

Liquid junction material Porous sintered polyethylene

Wetted material

Electrode length 150 mm

Ext. diam. of wetted part 16 mm

Liquid junction height

Cable length

Connector BNC/Mini plug

Temperature probe NTC

Maximum dipping depth 1 m

Zero point pH7.0

Body material is plastic. Do not use organic solvents (such as
acetone or toluene).

Polymer-gel, 3.3 mol/L KCl

Glass, butyl rubber, polycarbonate,
polyethylene

Approximately 15 mm
(from the tip of electrode)

10D: 1 m　20D: 2 m

Oakton Instruments

625 E. Bunker Ct. Vernon Hills, IL. 60061, USA
E-mail: [e-mail]
Phone number: (1)888-462-5866

For any questions regarding this product, please contact your local agency,
or inquire from the following website.
http://www.4oakton.com/

 Preparations

Note

Note

C1

T1

T2

C2

①

②

③

④

Protective cap

Note

Note

Note

 Connecting to pH meter

1. Insert the electrode connector into the connector port
sleeve on the meter, after aligning with the pin. Do not
insert the connector unless it is aligned properly with the
connector port.

2. Press the electrode connector into the connector port on
the meter, while turning the connector to the right.

3. Slide the connector cover over the connector. Then,
push the cover in straight until it comes in light contact
with the meter case.
Do not turn the cover.

4. Insert the temperature connector into the jack on the
meter. Insert the connector firmly, until the O-ring on the
connector can no longer be seen.

5. Shake the electrode in the sample solution lightly to
remove bubbles

. If bubbles remain on the electrode

surface, accurate measurement cannot be performed.

 The time for submerged measurement within 1 m of the

depth is limited in 30 minutes.

 For the calibration and the measurement of the pH meter,

refer to the instruction manual of the pH meter.

 Maintenance

Do not use organic solvents (such as acetone or
tetrahydrofuran) as cleaning solutions. Using such chemicals
may damage the body of the electrode or cause a decline in
performance.

Be sure to install the temperature connector. If not, accurate
measurement cannot be performed.

 Measurement (calibration)

White crystal powder of KCl may appear around on the end of
the protective cap after long time storage. The powder may not
be a cause of trouble for measuring pH, and wash them with
pure water.

1. Remove the protective cap.

2. Clean the electrode with pure water (or deionized water)
and wipe it with filter paper or tissue paper, prior to every
immersion into

the standard or sample solution.

Dirt on the responsive glass membrane or the liquid junction
by the test solution may cause a decline in electrode
response and sensitivity or measurement error. If the
electrode is very dirty and cannot be washed clean using
pure water (or deionized water), perform cleaning as follows.

 Cleaning of electrode

1. The responsive glass membrane can be cleaned by
wiping it with cotton gauze containing cleansing agent.
The liquid junction can be cleaned by applying it with
cotton gauze containing cleansing agent. (- 30 minutes)

Type of dirt Cleansing agent

General Diluted neutral cleansing agent

Oil Alcohol, or diluted neutral cleansing agent

Inorganic substance Hydrochloric acid approximately 1 mol/L

2. Rinse the electrode with pure water (or deionized water)
completely

.

3. When there are air bubbles inside the responsive glass
membrane, s

hake the electrode lightly to remove

bubbles.

4. Immerse the responsive glass membrane and the liquid
junction in the sample

solution completely.

2

3. Immerse the liquid junction completely into 3.33 mol/L
KCl solution for approximately 30 minutes before use.

 Do not apply excessive force to the glass membrane on

wiping.

 Be sure to perform calibration prior to measurement after

cleaning the electrode.